/**
 * Copyright 2024 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

const QUALITY = 80;

async function main() {
  const iterator = DriveApp.getFilesByType("image/jpeg");

  while (iterator.hasNext()) {
    const file = iterator.next();
    const bytes = file.getBlob().getBytes();

    const dataUrl = await compress_(bytes, QUALITY);

    if (dataUrl) {
      console.log(dataUrl);
    } else {
      console.warn("failed to decode image");
    }
  }
}
